IBM Partner Pavilion 6823 用户手册
Table 2. I/O address map (continued)
Address range (hex)
Size (bytes)
Description
0072
1 bit
Enable NMI
0072, bits 6:0
6 bits
RTC address
0073
1
RTC data
0080
1
POST checkpoint register during POST only
008F
1
Refresh page register
0080 – 008F
16
DMA page registers
0090 – 0091
15
General I/O locations, available to PCI bus
0092
1
PS/2 keyboard controller registers
0093 – 009F
15
General I/O locations
00A0 – 00A1
2
Interrupt controller 2
00A2 – 00BF
30
APM control
00C0 – 00DF
31
DMA 2
00E0 – 00EF
16
General I/O locations, available to PCI bus
00F0
1
Coprocessor error register
00F1 – 016F
127
General I/O locations, available to PCI bus
0170 – 0177
8
Secondary IDE channel
01F0 – 01F7
8
Primary IDE channel
0200 – 0207
8
MIDI/joystick port
0220 – 0227
8
Serial port 3 or 4
0228 – 0277
80
General I/O locations, available to PCI bus
0278 – 027F
8
LPT3
0280 – 02E7
102
Available
02E8 – 02EF
8
Serial port 3 or 4
02F8 – 02FF
8
COM2
0338 – 033F
8
Serial port 3 or 4
0340 – 036F
48
Available
0370 – 0371
2
IDE channel 1 command
0378 – 037F
8
LPT2
0380 – 03B3
52
Available
03B4 – 03B7
4
Video
03BA
1
Video
03BC – 03BE
16
LPT1
03C0 – 03CF
52
Video
03D4 – 03D7
16
Video
03DA
1
Video
03D0 – 03DF
11
Available
03E0 – 03E7
8
Available
03E8 – 03EF
8
COM3 or COM4
03F0 – 03F5
6
Diskette channel 1
03F6
1
Primary IDE channel command port
64
User Guide